汽车底盘零件焊接质量评价 - 图文

SMTC

上汽股份有限公司技术中心企业技术标准 Enterprise Technical Standard of SAIC Motor Technical Center

SMTC 21549?2010

汽车底盘零件焊接质量评价

Evaluation of Welding Quality of Parts of Vehicle

Chassis

2010-XX-XX 发布/Issue

2010-XX-XX实施/Implementation

上汽股份技术中心技术标准化委员会

Technical Standardization Committee of SAIC Motor Technical Center

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SMTC 21549?2010

目 次

Table of Contents

前言 ........................................................................................................................................................................ II 1 适用范围 .......................................................................................................................................................... 1 2 定义 .................................................................................................................................................................. 1 3评价方法及要求 ................................................................................................................................................. 4 4返修 ................................................................................................................................................................... 13 5示意图 参考切片照片 ..................................................................................................................................... 13 6文件记录整理 ................................................................................................................................................... 13

Foreword ................................................................................................................................................................ II 1 Applicable Scope ............................................................................................................................................... 1 2 Definition .......................................................................................................................................................... 1 3 Evaluation Method and Requirement .................................................................................................................. 4 4 Rework .............................................................................................................................................................. 13 5 Sketch Map Referential Pictures of Cut Sample ............................................................................................ 13 6 Document Record Arrangement ...................................................................................................................... 13

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SMTC 21549?2010

前 言

Foreword

本标准由材料分标委提出。

本标准由SMTC技术标准化委员会批准。 本标准由标准化工作组归口管理。 本标准起草部门：质保部中心实验室 本标准主要起草人：李吉鹏

本标准于2010年X月X日首次批准发布，2010年X月X日实施。

The Standard is brought forth by the Material Substandard Committee.

The Standard is approved by Technical Standardization Committee of SMTC.

The Standard is under the direct administration of Standardization Working Team. The Standard is drafted by: Central Lab of Quality Control Department The major drafter of the Standard: Li Jipeng.

The Standard is approved and issued on mm/dd, 2010 for the first time, and implemented on mm/dd, 2010.

II

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SMTC 21549?2010

汽车底盘零件焊接质量评价

Evaluation of Welding Quality of Parts of Vehicle Chassis

1 适用范围

1. Application scope

本标准规定了汽车底盘零件焊接质量的评价方法和要求。

本标准适用于汽车副车架，下摆臂，前后桥,前后缓冲梁的焊接连接检查。

The Standard stipulates the method and requirement on the evaluation of welding quality of parts of vehicle chassis.

The Standard is applicable to checking welding connection of sub-frame, arm-lower rocker, front and rear axles, and front and rear bumper beams.

2 定义

2. Definition

2.1 气体保护焊接连接 2.1.1 角焊缝 见图1

2.1 Gas protection welding connection 2.1.1 Fillet See Figure 1

焊缝 Welded seam

符号含义：

Symbol meaning:

a’ －最小焊缝厚度（焊高） f1 －t1构件的焊接熔深 e1’－最小焊缝底部焊接熔深 f2－t2构件的焊接熔深 e2’－最大焊缝底部焊接熔深 R－焊缝旋转角 t1, t 2－构件的厚度

a’ －minimum welded seam thickness (welded seam height) f1 －weld penetration of t1 member

1

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e1’－Bottom weld penetration of minimum welded seam f2－weld penetration of t2 member

e2’－Bottom weld penetration of maximum welded seam R－Rotation angle of welded seam

t1, t 2－member thickness

图1 角焊缝的几何图形

Figure 1 Geometrical Figure of Fillet

2.1.2 搭接角焊缝 见图2

2.1.2 Overlapping fillet See Figure 2

符号含义：

Symbol meaning:

a －额定焊缝厚度（焊高） f1 －t1构件的焊接熔深 S1, S2－t1 ，t2 构件焊缝厚度 f2 －t2构件的焊接熔深 SN－最小的,共同的焊缝厚度 t1, t 2－构件的厚度

a －rated welded seam thickness (welded seam height) f1 －weld penetration of t1 member

S1, S2－t1 and t2 member welded seam thicknesses f2 －weld penetration of t2 member

SN－minimum and common welded seam thickness t1, t 2－member thicknesses

图2 搭接角焊缝的几何图形

Figure 2 Geometrical Figure of Overlapping Fillet

2.1.3 斜角焊缝 见图3

2.1.3 Oblique fillet See Figure 3

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符号含义：

Symbol meaning: f2 －t2构件焊接熔深

SN －焊缝厚度 t1, t 2－构件的厚度

f2 －weld penetration of t2 member

SN －Welded seam thickness t1, t 2－member thicknesses

图3 斜角焊缝的几何图形

Figure 3 Geometrical Figure of Oblique Fillet

2.1.4 塞焊 见图4

2.1.4 Slot welding See Figure 4

符号含义：

Symbol meaning:

fL －焊接熔深直径或长度，宽度 f2 －t2构件焊接熔深 ? －孔的直径 L×B—孔的长度×宽度 t1, t 2－构件的厚度

fL －diameter or length, width of weld penetration

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f2 －weld penetration of t2 member ? －hole diameter L×B—hole diameter×width t1, t 2－member thicknesses

图4 塞焊的几何图形

Figure 4 Geometrical Figure of Slot Welding

2.1.5 多重搭接角焊缝 见图5

2.1.5 Multi-overlapping fillet See Figure 5

符号含义：

Symbol meaning: f3 －t3构件焊接熔深

SN1，SN2 －焊缝厚度 t1, t 2，t 3－构件的厚度

a1, a 2 －额定焊缝厚度（焊高） f3 －weld penetration of t3 member

SN1，SN2 －welded seam thicknesses t1, t 2，t 3－member thicknesses

a1, a 2 －rated welded seam thicknesses (welded seam height)

图5 多重搭接角焊缝的几何图形

Figure 5 Geometrical Figure of Multi-overlapping Fillet

2.1.6 有圆周截面的角焊缝 见图6

2.1.6 Fillet with circumferential section See Figure 6

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SMTC 21549?2010

S

符号含义：

Symbol meaning: f1 －t1构件焊接熔深 f2 －t2构件焊接熔深

S, SN －焊缝厚度 t,t 2－构件的厚度

a －额定焊缝厚度（焊高）

f1 －weld penetration of t1 member f2 －weld penetration of t2 member

S, SN －sealed seam thicknesses t,t 2－member thicknesses

a －rated welded seam thicknesses (welded seam height)

图6 有圆周截面的角焊缝的几何图形

Figure 6 Geometrical Figure of Fillet with Circumferential section

2.2 点焊连接 见图7

2.2 Spot welding connection See Figure 7

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图7 点焊的几何图形

Figure 7 Geometrical Figure of Spot Welding 压痕直径 熔深 压痕深度 热影响区 熔核直径 Press diameter Fusion penetration Press depth Heat affecting area Nugget diameter 2.3 凸焊连接

指焊接螺栓,焊接螺母. 2.3 Projection welding

Refer to welding bolt and nut 3 评价方法及要求

3. Evaluation method and requirement 3.1目视检查

3.1 Visual inspection

3.1.1 焊缝、焊点

3.1.1 Welded seam and point

焊缝，焊点的外观，尺寸，位置，及焊缝的现有状况必须符合图纸及相关标准规定的要求。 （焊丝及保护气体的成份也要符合相关图纸及相关标准规定的要求）

Appearance, size, and position of welded seam and point, and also current condition of welded seam should conform to requirements of drawings and related standards. (Elements of filler metal and protection gas should conform to requirements of drawings and related standards as well)

3.1.2焊接飞溅

不允许有影响构件性能的焊接飞溅（参见图纸） 3.1.2 Welding spatter

There should be no welding spatter affecting member performance (refer to the drawings).

3.1.3 工序

进行100%的目检

3.1.3 Working procedure 100% visual inspection

3.2 试样制作及测量方法

3.2 Sample production and measuring method

3.2.1 气体保护焊接

根据在5.2节中的规定的位置切割试样。取样位置应避开起弧区和收弧区。切割面要打磨精细并用2%～20%的硝酸溶液进行表面腐蚀， 以便看见基体材料中焊接金属的熔深情况。将切片放在适当放大倍数（低倍）的光学镜下进行测量焊接熔深、焊缝厚度及焊接缺陷等。 3.2.1 Gas protection welding

Cut samples at the position stipulated in Section 5.2. Samples should not be made at arc-striking area and

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斜角焊缝 f2≥0.12 tmin tmin =最薄板厚 当tmin≤2时 f2≥0.2 SN≥0.7 tmin 图20 上板端面必须100%熔透 tmin －最薄板厚 多重搭接角焊缝 f3≥0.12 tmin tmin =最薄板厚 当tmin≤2时 f3≥0.2 SN1≥0.7 tmin SN2≥0.7 tmin 上板t1,t2端面必须100%熔透 tmin －最薄板厚 S≥0.7 tmin 有圆周截面的角悍缝（空心） f1≥0.12 tmin f2≥0.12 tmin tmin =最薄板厚 当tmin≤2时 f1≥0.2 f2≥0.2 tmin －最薄板厚 有圆周截面的角悍缝（实心） f1≥0.12 tmin f2≥0.12 tmin tmin =最薄板厚 当tmin≤2时 f1≥0.2 f2≥0.2 SN≥0.7 tmin 图21 tmin －最薄板厚 12

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塞焊 和L×B Welded feature seam Welded seam sketch map f L≥?和 f L≥L或B f2≥0.12 tmin tmin =最薄板厚 当tmin≤2时 f2≥0.2 上板端面必图18 须100%熔透 孔必须完全封闭 Weld penetration (mm) f1≥0.12 tmin f2≥0.12 tmin tmin =Minimum plate thickness When tmin≤2 f1及f2≥0.2 f2≥0.12 tmin tmin =Minimum plate thickness When tmin≤2 f2≥0.2 Welded seam thickness (mm) SN≥0.7 tmin Profile (See Section 5.3) Figure 13 Figure 17 Figure 19 Fillet tmin －Minimum plate thickness Overlapping fillet Figure 14 Upper end Figure surface 15 should be Figure penetrated 16 100% tmin －Minimum plate thickness SN≥0.7 tmin 13

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Oblique fillet f2≥0.12 tmin tmin =Minimum plate thickness When tmin≤2 f2≥0.2 SN≥0.7 tmin Figure 20 Upper end surface should be penetrated 100% tmin －Minimum plate thickness SN1≥0.7 tmin SN2≥0.7 tmin Multi-overlapping fillet f3≥0.12 tmin tmin =Minimum plate thickness When tmin≤2 f3≥0.2 Upper plate t1,t2 end surface should be penetrated 100% tmin －Minimum plate thickness S≥0.7 tmin Fillet with circumferential section (hollow) f1≥0.12 tmin f2≥0.12 tmin tmin =Minimum plate thickness When tmin≤2 f1≥0.2 f2≥0.2 tmin －Minimum plate thickness 14

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Fillet with circumferential section (solid) f1≥0.12 tmin f2≥0.12 tmin tmin =Minimum plate thickness When tmin≤2 f1≥0.2 f2≥0.2 And L×B SN≥0.7 tmin Figure 21 tmin －Minimum plate thickness Slot welding f L≥? and f L≥L or B f2≥0.12 tmin tmin =Minimum plate thickness When tmin≤2 f2≥0.2 Upper end Figure surface 18 should be penetrated 100% Holes should be completely sealed

3.3.3.3 焊缝必须符合表3中所列的焊缝缺陷的极限值

3.3.3.3 Welded seam should conform to limit values of welded seam flaws listed in Table 3.

若图纸没有其它的要求，则下表对缺陷的极限值适用。焊缝缺陷不允许对表面保护有不好的影响。

If there are no other requirements in the drawings, the follow table shall apply to limit values of flaws. Flaws of welded seams should not have unfavorable impact on surface protection. 评价级别 D-低 C-中 B-高

Evaluation grade D-low C-medium B-high 表3 焊缝缺陷的极限值

Table 3 Limit values of flaws of welded seams 序号 1 2

缺陷名称 裂纹 孔隙率和气孔 说明 2）单个气孔的最大尺寸 不规则性的极限值 评价级别 规定值 C B 不允许 1% h≤0.3a mm 15

1）全部气孔在投影面或折射面上的最大尺寸 B 打印、拷贝即为非受控文件，请核查最新版本

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3 4 5 6 气道和条状气孔 夹杂（除铜外） 未熔合 熔深不够 1)长的不规则性1)长的不规则性 （2） B B B B C 规定熔深 实际熔深 B 不允许 h≤0. 3a mm 不允许 h≤0. 3a mm 不允许 若低于最低熔深不允许 2）短的不规则性2）短的不规则性（1）（2）（1） 7 间隙的配合 B h≤0.5+0.1 a mm 最大2 mm 8 咬边 B h≤0.5mm 9 余高太大 B h≤1+0.1b mm 最大3 mm 16

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10 焊角不等边性 B h≤1.5+0.15 a mm 必须保证最低熔深 11 No. Flaw name Description Limit value of irregularity Evaluation Stipulated value grade 1 2 3 4 5 6 Crack C Not allowed 1% h≤0.3a mm Not allowed h≤0. 3a mm Not allowed h≤0. 3a mm Not allowed Not allowed if being lower than the minimum fusion penetration Void factor and gas 1） Maximum sizes of all gas holes on B hole projection plane or refracting plane 2）Maximum size of a single gas hole （2）焊接飞溅 B 参见3.1.2节 B B Gas channel and strip 1) Long irregularitygas hole Mixed (except for 1) Long irregularitycopper) Infused Inadequate penetration 2）Short irregularity（1）B B （2） Stipulated penetration Actual penetration 2）Short irregularity（1）B C B 17

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7 Clearance mB h≤0.5+0.1 a mm 2 mm at maximum atching 8 Overlapping B h≤0.5mm 9 Too big height surplus B h≤1+0.1b mm 3 mm at maximum 10 Leg scalene B h≤1.5+0.15 a mm guarantee minimum fusion penetration 11 （1）Welding spatter B Refer to Section 3.1.2 短的不规则焊缝：每100 mm焊缝长度上总长度不超过25mm的一个或数个不规则焊缝，或焊缝长度不到100mm时最大尺寸为总长度25%的不规则焊缝。 （2）

长的不规则焊缝：每100 mm焊缝长度上总长度超过25mm的一个或数个不规则焊缝，或焊缝长度不到100mm时最大尺寸超过总长度25%的不规则焊缝。 （1）

Welded seam of short irregularity: There is one or several irregular welded seams less than 25mm on welded seam every 100m, or irregular welded seam exceeding 25% of the longest size on welded seam less than 100mm long. （2）

Welded seam of long irregularity: There is one or several irregular welded seams more than 25mm on welded seam every 100m, or irregular welded seam exceeding 25% of the longest size on welded seam less than 100mm

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long. 缩写符号：

Abbreviation symbol: a— 额定焊缝厚度尺寸 b— 焊缝余高的宽度 h—焊缝缺陷尺寸

s—局部焊弧穿透时的熔深 z—焊角长度

a—thickness of rated welded seam

b—width of surplus height of welded seam h—Flaw size of welded seam

s—fusion penetration of partial welding arc in penetration z—leg length

3.3.4 点焊的评价

3.3.4 Spot welding evaluation

3.3.4.1 不允许有有害的气孔，夹杂，裂纹，深的凹陷，大的倾斜角等缺陷，具体按照表4的标准评价。 3.3.4.1 There should be no harmful flaws such as gas hole, foreign substance, crack, deep sagging, and big oblique. Evaluation is based on standards in Table 4. 表4 点焊缺陷评价

Table 4 Spot Welding Flaw Evaluation No. 名称 1 2 3 4 5 压入深度tE 熔核内部的气孔直径dpore 合格 （标记1） tE≤0.2t dpore≤0.1dL 凿检试验合格 允许在粘结区域内 允许出现在： 熔核中心 粘结区域范围 熔核边缘和垂直于接缝表面 L＜0.15mm（垂直于接缝表面测量） 0.50≤L≤0.80 L≥0.15mm L＞0.80mm 带条件合格 （标记2） 0.2 t＜tE＜0.3 t 0.1dL＜dpore＜0.2dL 凿检试验合格 0.2dL＜h＜0.25dL 不合格 （标记3） tE＞0.3t dpore≥0.2dL h≥0.25dL 熔核内部硬化裂纹（延伸） h≤0.2dL 铝杂质 氧化物析出 6a 6b 7 表面裂纹：在电极压入的边缘范围内 表面裂纹：在电极压入的边L＜0.50mm 缘范围中心（中心Ф0.2 dL） 微裂纹 不允许： ·与焊缝平面平行变化并且进入熔核内部 ·在熔核边缘上，并且垂直于接缝平面变化 ≤200 Qualified （Mark 1） tE≤0.2t / Conditionally qualified （Mark 2） 0.2 t＜tE＜0.3 t ＞200 Unqualified （Mark 3） tE＞0.3t 19

8 倾斜角 No. Name 1 Pressed depth tE

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2 Diameter of gas hole in dpore≤0.1dL dpore≥0.2dL 0.1dL＜dpore＜0.2dL nugget dpore Qualified in Qualified in chiseling chiseling inspection inspection Internal hardened crack of h≤0.2dL nugget (extension) Aluminum impurity Oxide precipitation 0.2dL＜h＜0.25dL h≥0.25dL 3 4 5 Be allowed to appear in the sticking area Be allowed to appear in: Nugget center Scope of the sticking area Nugget edge and vertical with seam surface 6a Surface crack：within the L＜0.15mm（measurement vertical with seam L≥0.15mm edge scope of electrode surface） pressing Surface crack：within the L＜0.50mm edge scope of electrode pressing（center Ф0.2 dL） Micro-crack 0.50≤L≤0.80 L＞0.80mm 6b 7 Be not allowed to： ·Change in parallel with the surface of welded seam and enter nugget ·Be on the edge of nugget and change vertical with the surface of welded surface ≤200 / ＞200 8 Oblique

结果评定：

Result evaluation:

标记1 = 合格

标记2 = 尚可用，但必须要改善 标记3 = 返修（如果允许）或报废

符号含义：t - 板厚 h - 缺陷长度 L - 裂纹长度

Mark 1 = qualified

Mark 2 = be still usable, but remain to be improved Mark 3 = rework (if allowed) or rejected

Symbol meaning: t – plate thickness h – flaw length L – crack length

3.3.4.2 点焊必须满足表5中规定的要求

4.3.4.2 Spot welding should meet requirements stipulated in Table 5.

以剪拉力，凿检和/或以熔核直径和熔深检查为主的检测应分别按照下面的要求评价。

Inspections focusing on shearing tension, chiseling and/or nugget diameter and penetration should be evaluated according to the following requirements.

—合格：焊点可以从母材剥离或焊接满足试验载荷： F≥Fmin F—剪拉力（kN）。

—Qualified: welding point can be separated from base metal or welding meets test load: F≥Fmin F— shearing tension（kN）

焊点直径dp 满足：dp≥dpmin 熔核直径dL满足：dL≥dL min

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熔深tL 满足： tL≥0.2mm

无环形熔核。

Welding point diameter dp: dp≥dpmin Nugget diameter dL: dL≥dL min Penetration tL : tL≥0.2mm No ring nugget

备注：环形熔核指熔核中心区域未熔合或熔合很少。

Nugget: ring nugget refers to the fact that the central area of nugget is not fused or slightly fused.

—不合格：满足下列条件之一即为不合格。 —Unqualified: one of the following conditions.

焊接分开，而焊点没有从母材剥离。 剪拉力：F＜Fmin

焊点直径dp ：dp＜dpmin 熔核直径dL ：dL＜dL min 熔深tL ： tL＜0.2mm

存在环形熔核。

Welding is severed, and welding point is not separated from base metal. Shearing tension：F＜Fmin

Welding point diameter dp ：dp＜dpmin Nugget diameter dL ：dL＜dL min Penetration tL ： tL＜0.2mm

There is ring nugget

说明：1）、当图纸规定的要求高于本标准时，按照图纸规定的要求执行。

2）、在检测以及行驶试验结束后，决定有缺陷的焊点是否允许接受，并吸收到图纸中去。

Note: 1) When requirements stipulated in the drawings are higher than the standard, the requirements shall prevail.

2) When the inspection and driving test are about to complete, it should be decided whether welding points with flaws can be accepted, and absorbed in drawings. 表5 点焊的要求

Table 5 Spot Welding Requirements

最小板厚tmin mm 1.0 1.2 1.5 2.0 2.5 3.0 3.5 4.0

熔核直径dL min≥3.5 √tmin mm 3.5 3.8 4.3 5.0 5.5 6.1 6.5 7.0 焊点直径dpmin = 1.2dL min mm 4.2 4.6 5.2 6.0 6.6 7.3 7.8 8.4 最低剪拉力Fmin kN 3.2 4.2 5.1 7.2 10.5 12.4 15.0 18.5 21

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Minimum plate Nugget diameter dL thickness tmin √tmin mm mm 1.0 1.2 1.5 2.0 2.5 3.0 3.5 4.0 3.5 3.8 4.3 5.0 5.5 6.1 6.5 7.0 min≥3.5 Welding point diameter dpmin Lowest shearing = 1.2dL min tension Fmin mm kN 4.2 4.6 5.2 6.0 6.6 7.3 7.8 8.4 3.2 4.2 5.1 7.2 10.5 12.4 15.0 18.5 3.3.5 凸焊

3.3.5 Projection welding

焊接螺母以及焊接螺栓与钢板焊接后必须满足表6所示的最小头部拉力。焊接螺母，焊接螺栓同时必须满足表6所示的最小扭矩。焊接螺母，焊接螺栓的焊接强度原则上应用检验最小扭矩法，在有疑问或特别要求时才采用头部拉力试验法。

The welding of nuts and bolts as well as steel plate should reach the minimum head tensions listed in Table 6. Welding nuts and bolts should reach the minimum torque moments listed in Table 6. In principle, welding strengths of nuts and bolts should be inspected with the minimum torque method. Head tension test is adopted if there are doubts or special requirements.

表格适用于0.5～4 mm厚度的钢板，不同厚度钢板的要求值利用线性插入法计算得出。

The table applies to 0.5～4 mm-thick steel plates. Required values of steel plates of different thicknesses are calculated with the linear interpolation method. 表6 焊接螺母以及焊接螺栓要求

Table 6 Requirements on Welding Nuts and Bolts 螺纹规格 M4 M5 M6 M8 M10 M12 M14 M16 钢板厚度 mm 0.5 ≥1.25 0.5 ≥1.25 0.5 ≥1.75 0.75 ≥3.0 1.00 ≥3.5 1.50 ≥3.5 1.50 ≥3.5 1.50 ≥3.5

最小头部拉力FKZ KN 1.2 2.0 1.2 2.0 1.4 2.5 2.3 4.0 4.5 8.0 4.8 8.0 4.8 8.0 4.8 8.0 最小扭矩 N·M 10 15 14 20 25 35 65 85 100 130 110 155 110 155 110 155 22

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Thread specification M4 M5 M6 M8 M10 M12 M14 M16 Steel plate thickness mm 0.5 ≥1.25 0.5 ≥1.25 0.5 ≥1.75 0.75 ≥3.0 1.00 ≥3.5 1.50 ≥3.5 1.50 ≥3.5 1.50 ≥3.5 Minimum head tension FKZ KN 1.2 2.0 1.2 2.0 1.4 2.5 2.3 4.0 4.5 8.0 4.8 8.0 4.8 8.0 4.8 8.0 Minimum torque moment N·M 10 15 14 20 25 35 65 85 100 130 110 155 110 155 110 155

4 返修

在焊接生产工序中，可能存在个别焊缝不符合要求而需要进行返修的情况，要制订一份返修工艺图。 4. Rework

In the working procedure of welding, the welding might be reworked since several welded seams do not conform to requirements. Therefore, a reworking technical chart should be formulated. 5 示意图 参考切片照片

5. Sketch map, refer to pictures of cut samples. 5.1剖面要求

切割点至少在焊缝开始之后或焊缝终端之前10mm的地方或在中间。 5.1 Section plane requirements

Cutting point should be 10mm after the start of welded seam or behind the end of welded seam, or at the middle of welded seam.

5.2 焊缝、焊点切片剖面位置图

图12所示例的是副车架的焊缝、焊点切片位置图，焊缝的编号方法。其它零件可参考这种方法制作。 5.2 Section plane position chart of cut samples of welded seam and point

Figure 12 displays the section plane position of cut samples of welded seam and point of sub-frame, and numbering method of welded seam. The other parts can be produced in reference to the method. 5.3切片照片

各类型焊缝的切片参考照片 见图13 — 图22 5.3 Cut sample pictures

Cut sample of various welded seams refer to Picture 13-22.

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6 文件记录整理

将焊缝和点焊的检测结果整理到检查记录中。记录保存期限15年以上，切片保管6个月以上。 6. Document record arrangement

Inspection results of welded seam and spot welding should be recorded. The record should be stored for above 15 years, and cut samples above 6 months.

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SMTC 21549?2010

剖面位置编号示例：

Section plane position numbering example:

编号 连接构件 剖面1 — 8：上部/下部轴向焊接

剖面9 —10：上部/隔板长孔焊接

剖面11—12： 隔板/下部焊缝

剖面13—18： 轴套/上部焊缝

剖面13a—18a：轴套/下部焊缝

剖面19 —20：上部/下部焊接

剖面21—22： 上部处的SGR加强件焊接

剖面 P： 上部/下部点焊

剖面 P5：隔板/下部点焊 图12 副车架焊缝剖面图(示例) Figure 12 Section Plane of Welded Seam of Sub-frame (Example)

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No. Connection member

Section plane 1 — 8：upper/lower axial welding

Section plane 9 —10：upper/partition board long hole welding

Section plane 11—12： partition board/lower welded seam

Section plane 13—18： axial sleeve/upper welded seam

Section plane 13a—18a：axial sleeve/lower welded seam

Section plane 19 —20：upper/lower welded seam

Section plane 21—22： upper SGR reinforced piece welding

Section plane P： upper/lower spot welding

Section plane P5：partition board/lower spot welding

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SMTC 21549?2010

参考切片照片：

Referential pictures of cut sample

3.6 0.8

Fusion penetration：0.8mm and 0.6mm

Welded seam thickness：3.6 mm

0.6 图13 剖面 Figure 13 Section plane

Fusion penetration：0.6mm End surface of upper plate

is100% penetrated

0.6

图14 剖面

Figure 14 Section plane

Fusion penetration：1.5mm End surface of upper plate

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SMTC 21549?2010 is100% penetrated

1.5

图15 剖面

Figure 15 Section plane

Fusion penetration：0.8mm End surface of upper plate

is100% penetrated

0.8

图16 剖面

Figure 16 Section plane

1.6 0.3 Fusion penetration：

0.4mm and 0.3mm

Welded seam thickness：

1.6 mm

0.4

图17 剖面

Figure 17 Section plane

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5.5 Fusion penetration：

1.5mm and 5.5mm

End surface of upper

plate is100% penetrated

1.5

图18 剖面

Figure 18 Section plane

Fusion penetration：

0.8mm and 1.8mm

Welded seam thickness：

3.7 mm

图19 剖面

Figure 19 Section plane

Fusion penetration：

0.6mm

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End surface of upper

plate is100% penetrated

图20 剖面

Figure 20 Section plane

Fusion penetration：

0.6mm and 1.4mm

Welded seam thickness：

5.4 mm

图21 剖面

Figure 21 Section plane

Welding point

diameter：7.36 mm

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图22 剖面

Figure 22 Section plane

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